Elastomeric compounds incorporating metal-treated carbon blacks
AssigneeCabot Corporation
InventorsKhaled Mahmud, Meng-Jiao Wang, Yakov Evgenjevich Kutsovsky
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Abstract
Disclosed are elastomeric compounds including an elastomer and an aggregate comprising a carbon phase and a metal-containing species phase, optionally including a coupling agent. Also disclosed is an aggregate comprising a carbon phase and a metal-containing species phase. A variety of elastomers and formulations employing such elastomers are contemplated and disclosed. Elastomeric compounds incorporating an elastomer and the aggregate are also disclosed. Also disclosed are methods for preparing elastomers compounded with the aggregate, and methods of improving various properties of elastomeric compounds, such as abrasion resistance, hysteresis, wet skid resistance, and/or wet traction.
Claims42
A method for preparing an aggregate comprising a carbon phase and at least one metal-containing species phase comprising:
- introducing at least one decomposible or volatalizable metal-containing compound into a reactor along with a carbon black feed stock or during the formation of carbon black at a sufficient temperature to decompose or volatilize said compound and form an aggregate comprising a carbon phase and at least one metal-containing species phase.
A method of preparing an elastomeric compound, comprising:
- masticating and mixing in a mixer, an aggregate comprising a carbon phase and a metal-containing species phase and an elastomer, and optionally a coupling agent, for a time and temperature sufficient to form a masterbatch;
- milling said masterbatch;
- cooling said masterbatch to facilitate the addition of a curing additive and avoid substantial premature cross-linking;
- masticating and mixing in a mixer a mixture comprising the masterbatch and a curing additive, and optionally a coupling agent, for a time and temperature sufficient to form said elastomeric compound.
An aggregate comprising a carbon phase and at least one metal-containing species phase.
A method of making an elastomeric compound comprising introducing at least one volatilizable or decomposible metal-containing compound into a reactor along with a carbon black feedstock or during the formation of carbon black at a sufficient temperature to decompose or volatize said compound and form an aggregate comprising a carbon phase and at least one metal-containing species phase;
- and
- mixing said aggregate with an elastomer and coupling agent to form said elastomeric compound.
Dependencies are inferred from the claim text.